Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r7df1fae66b80c946ff1bcdee4b43afb5ab7a1d4c -re44aad7a9d5fa48aeaa55c65bd28ad9acde6ce05
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 7df1fae66b80c946ff1bcdee4b43afb5ab7a1d4c)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision e44aad7a9d5fa48aeaa55c65bd28ad9acde6ce05)
@@ -773,13 +773,17 @@
  *************************************************************************/
 void handleAlarmClear( MESSAGE_T *message )
 {
+    BOOL result = FALSE;
+
     if ( message->hdr.payloadLen == sizeof( U32 ) )
     {
         U32 alarmId;
 
+        result = TRUE;
         memcpy(&alarmId, message->payload, sizeof( U32 ) );
         clearAlarm( (ALARM_ID_T)alarmId );
     }
+    sendAckResponseMsg( (MSG_ID_T)message->hdr.msgID, COMM_BUFFER_OUT_CAN_DG_2_HD, result );
 }
 
 /*********************************************************************//**
@@ -1097,7 +1101,7 @@
 
     memcpy( payloadPtr, chemDisinfectData, sizeof( MODE_CHEMICAL_DISINFECT_DATA_T ) );
 
-    // serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
+    // Serialize the message (w/ sync, CRC, and appropriate CAN padding) and add serialized message data to appropriate comm buffer
     result = serializeMessage( msg, COMM_BUFFER_OUT_CAN_DG_BROADCAST, ACK_NOT_REQUIRED );
 
     return result;
@@ -3341,4 +3345,36 @@
     return result;
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleFilterFlushTimePeriodOverride function handles a request
+ * to override the filter flush time period value.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleFilterFlushTimePeriodOverride( MESSAGE_T *message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof( TEST_OVERRIDE_PAYLOAD_T ) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof( TEST_OVERRIDE_PAYLOAD_T ) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetFilterFlushTimePeriodOverride( payload.state.u32 );
+        }
+        else
+        {
+            result = testResetFilterFlushTimePeriodOverride();
+        }
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
+
 /**@}*/